TMZ Live Mariah vs. NickiHow the WAR Began

10/3/2012 11:30 AM PDT

TMZ Live: Mariah vs. Nicki ... How the WAR Began

TMZ Live

The Mariah Carey-Nicki Minaj feud turned into full scale war after their blowout on the "American Idol" set. We posted the video everyone's talking about -- now we'll tell you what the 'Idol' divas themselves are saying about it. And, will this help or hurt the show?

Also ... Chris Brown and Rihanna are leaving little doubt they're banging again -- so, question is ... should we feel sorry for RiRi if CB strikes again?

Plus, our heated debate with Richard Belzer! He joined us to explain why he threw up a Hitler salute (again) on live TV. Let's just say, Belz and Harv didn't see eye-to-eye on this. Chung chung!

(0:00) It's one of the craziest videos we've ever seen -- Nicki Minaj going crazy on Mariah Carey duing an "American Idol" taping ... and we'll tell you what set the whole thing off.(10:30) Breaking news -- Ashton Kutcher just got Punk'd ... with a new, ridiculous trick called "swatting." And it's not funny.(12:00)Chris Brown and Rihanna hung out at a club ... then at her hotel. The question: Would you feel sorry for her if he beat her up again? (16:10)Justin Bieber's ridiculous car got towed -- while he was performing at the Staples Center. So who was the dummy that parked it in a 15 minute spot?(18:00)Richard Belzer joins the show -- you gotta see him and Harvey go toe-to-toe over Richard's Nazi salute. (27:10) Playboy model/real housewife Joanna Krupa is NOT a prostitute ... and she's ready to sue to prove it.(29:00)AJ McLean loves ass. (30:30)Chris Cornell's maid says she got screwed over wages.(32:00)Winona Ryder is back!!! And hotter than ever.(33:20)Matt Barnes called a cop a p**sy and a fa**ot ... so which one is more offensive?(37:10)Jason Russell -- the guy behind the Kony video -- is finally opening up about his naked meltdown. You buying what he's selling?(40:00) We take your calls!